Head casting for radiators



Sept. 13, 1932. H. H. LINN HEAD CASTING FOR RADIATORS 2 Sheets-Sheet 1 Filed Oct. 8, 1930 Patented Sept. '13, 1932 UNITED STATESPATENTJ HOLMAN HARRY LINN, F MORRIS, NEW YORK, AssIeNoR To Inn LI N fMANIIrAo- TUBING CORPORATION, OF ivIORR-Is, NEW YORK, A CORPORATION on NEW R HEAD CASTING FOR RAnIA'roRs Application filed October 8, 1930. Serial No. 487,353;

The invention provides certain improvements in radiators to the end of obviating conditions tending to fouling whereby the maximum cooling area of the radiator is ef- 3 fective at all times.

Radiators, as ordinarily constructed, suffer loss of efficiency after more or less continued use, because the direct flow of the cooling medium, as delivered from the engine, is

m through the vertical central portion of the radiator with the result that the side portions gradually become choked with sediment,

and eventually are completely closed against flow. This puts the burden on the central 3;} portion of the radiator with consequent loss of efliciency.

One object of the invention is so to design the radiator that the incoming cooling medium is compelled to flow as well to the side portions as to the central portion, thus insuring full radiation and what is more important taking care of the proper volume of cooling medium.

Another object is the provision of a head casting so designed as to cause proper circulation, the unit casting making for simplicity of manufacture and insuring ceirtainty of operation under all conditions.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a plan view of a radiator constructed in accordance with the present invention. Fig. 2 is a rear elevation of the same. Fig. 3 is a plan view with the upper plate removed.

Fig. 4 is a transverse section through the radiator.

Fig. 5 is an end elevation of the radiator.

Fig. 6 is. a fragmentary horizontal view taken upon a center line of the conduits 5 and 6 and showing inlet 4 and outlets 7 and 8.

The improved radiator which may be of usual external design includes an elongated hollow body 1, whereof the bottom Wall 2- constitutes the upper header plate from which the usual cooling tubes depend.

'In ordinary constructions the flow is centrally of the body and more Or less directly to the central tube area. Consequently, under pump suction, the greater portion of the cooling medium will take the direct path through the central tubes, while appreciably less volume will find its way through'the side tubes.

- Under such conditions the side tubes become choked with sediment and eventually flow through them is cut 0T1.

- According to the present invention the rear wall of the body 1 is of heavy section, as at 3, and is formed witha central opening 4 to accommodate the return pipe of the cooling system. Opening 4 is closed against direct communication with the central interior of body 1, but is in direct communication with V the side areas through the mediuln-of con-g duits or channels 5 and 6, ranging through I the heavy section rear Wall 3 and extending in opposite directions, and in turn'communicating with the interior ofthe body 1, through openings 7 and 8. =1, The casting 1 is closed at topby a removable shell wall 9 conforming to the'shape thereof and equipped with a filling opening 10. J [a Within the body 1, at each side of the plane u of the filling opening, there are integral-partitions 11, which are spaced at their lower ends from the header plate 2 throughout the full width of the radiator as at'12. The'partitions or baflies 11 areeffective to prevent 19 direct full flow of the cooling medium deliv 'ered by conduits 5 and 6, from reachingthe central portion of the radiator, without, however, menacing suificient flow to the central portion of the radiator to equalizedistribu-Ja tion. Thus, the cooling medium'initially is delivered to the side areas of the radiator and compelled, under gravity and pump action, to flow through the tubes at the sides of the radiator, sufficient of the cooling medium '90 being delivered to the central portion of the radiator to maintain a constant and equalized circulation through the tubes leading from the central area. Hence, all of the tubes of the radiator are compelled to take '5 care of their proportionate portion of the cooling medium, and more important, the flow through the tubes at the side portions is such as to insure a constant and complete use of such tubes, and thus obviate condim ing from the inlet and communicating with the side regions of the body, and partitions -;on each side of said central region effective tions making for sediment collection and eventual fouling of the tubes.

The essential and characteristic feature of the invention is the provision of the side delivery conduits in a unit head casting, thus insuring the proper :relationof ,such conduits, maintaining them as integral and fixed parts of the radiator construction, and preventing possibility of displacement and avoiding the use of independent pipes and connections otherwise necessary. The radiator may or may not be provided with an overflow pipe 13.

Having described the invention, what is claimed is:

1. A radiator including an upper header section havingca rear wall of relatively heavy usection forined with an inlet, and conduits formed in said wall andestablishing communication between said inlet and the side regions lot the header.

2. A .ra'diator including a hollow body forming an upper header, the rear wall of .the body :being thickened and formed with an inlet closed against direct communication with the central interior region of the body, said wall having integral conduits extend- :to provide for restricted communication between the side and said central regions of :the'body.

'3. A radiator including a hollow body forming a header, one longitudinal wall of such body being formed with a central inlet and with conduits extending longitudinally "of and wholly within said wall, said conduits opening into the interior of the body in both 7 directions beyond said inlet, said central inlet and conduits being otherwise closed from communication with said header.

' 4. A radiator including a hollow body forming a header,lone'longitudinal wall of 'suchbody :being formed with a central inlet and with longitudinally ranging conduits open to such inlet at one end, the opposite ends of the conduits opening into the body :between the ends of the body and such inlet, and means within the body to restrict free flow between said conduits and the central portion of the body.

In testimony whereof I aflix my signature.

HOLMAN .HARRY LINN; 

